Mixed COVID-19 vaccine after 2 doses of Sinovac regimen boosts antibodies: Study

Giving COVID-19 vaccines from either AstraZeneca-Oxford, Pfizer-BioNTech or Johnson & Johnson as a booster after two doses of the COVID-19 inactivated-virus vaccine from Sinovac , leads to significantly higher antibodies, a study has found.

The best response was seen when an RNA vaccine was given as a booster after the standard schedule of Sinovac's CoronaVac, researchers from Oxford University said on Monday, adding that the responses were seen against the Delta and Omicron coronavirus variants too.
 

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